Quenching apparatus



- which is particularly Patented Jan'. 15, 1929.

UNI-TED STATES nor n. alarm, or xnN'r, omo.

eUENcnrNe nrrniwrus.

Application Med lay 8,

e The present invention relates to apparatus designed for use in connection with quenching of ferrous articles after they have been heated.

The apparatus is particularly designed for quenching small articles which are delivered to the apparatus continuously or intermit tently, and are received and discharged by the quenching apparatus as a substantially continuous process. v

The apparatus is pa ticularly desi ed to v rapidly quench ferrous articles, in act, to

accomplish the quenching as near instantaneously as this can be done, andin addition the apparatus is so designed that the uenching fluid delivered thereto will by t e mechanical impact between the ferrous articlesV -and the quenching liquid, cause a tossing about of the ferrous articles within the quenching iiuid.

Reference should be had to the accom- -panying drawings forming a part of this specification, in which Fig. 1 is a side eleva' tion with portions in section showing the apparatus of the present invention in cio-operation with apparatus for heat treating ferrous articles. Fig. 2 is an end elevation with portions 'in section of the showing in Fig. 1;

, Fig. 3 is a section substantially upon the line 3-3 of Fig. 2.

The quenching apparatus comprises an outer casing member 1 within which and spaced' from the side walls thereof is an inside member 2. This construction provides an annular space 3 which surrounds the inside member 2. There is a pipe 4 which connects with the space 3 being threaded into a suitable opening formed in the outside casing member 1, and water may be delivered through pipe 4 to the space 3.

For convenience in manufacture the inside member 2 is so designed that it may be separately made and assembled with respect to the outside casing 1, but of course, this '1s an unessential detail. The member 2 is provided at its upper end with a'bell-shaped mouth iece 5 which is adapted to receive and guide ferrous articles to be quenched, to which more complete reference will later be made. The bell member 5 is supported from the member 2 by means of ribs 6 so that n ofthe member 2 In fact, the. open excert 1925. serial No.` saaie.

holes extending through the side wall, as indlcated at 8. These holes are preferably slantmg and are so arranged that streams of water discharged from them will be converging. Thereare a large number of these openings or holes 8 so that quenching iuid which is discharged into the chamber 3 through the pipe 4 will readily pass through these openings and under thepressure which isA existent in the fluid coming through v'the pipe 4. The water which is discharged into the interior of the member 2 will overflow the top and the proportion of the partsv is such that there will be a free and'ready movement of the quenching fluid within the member 2 and discharging through the top thereof.

The object of the construction is to pass a very large quantity of quenching iuid throu h the member 2 and discharge the same in a s ort'spaceof time.

It will be readily seen that the discharge of a large number of jets of water into the body of water that 2 will cause a. great turbulence in that water. This is purposeful so that the articles discharged into less tossed about and moved around within the quenchin iiuid as these articles are delivered into t e member l2.

' The bottom` portion of the casing 1 has anv opening 9 through it which communicates with. the interior of the member 2. This opening is closed by a closure member 10 which is carried by secured to a short'shaft 12 which is supported in ears 13 carried by the body portion 1.

A lever 14 is also secured to the shaft 12 at the central portion thereof so' that as the lever 14 is operated the closure member 10 may be moved to open or closed position. Obviously the operationof the closure member 10 Will enable the discharge of the material which is delivered to the quenching apf paratus. l

Connected with the chamber 3 are pipes 15 and 16, these pipes'extending from the bottom or lower portion of the outside body portion 1. The pipes 15 and 16 are connected ysuitable piping as indicated at 17, and in substantially the central portion of-the conlls the interior of the member the member 2 will be more or oo arms 11 which arms are necting pipes 17 there is a nozzle 18 which disf l `tion of the closure member 10. by theribs This nozzle member will normally play againstthe under slde of tliclosure member which is so mounted at ral member 23 whichv is closed comprises through the.

10 so as to keep this cool at all times and assist in conduction of heat of any ferrous articles which may by chance fall and rest upon the top of the closure member 10.' Y

It will be desirable to refer to the heat treating apparatus which may be used in connection With the quenching apparatus described because in the associatlon of the quenching apparatus with the heat treating apparatus, it

1s possible to operate the lower closure member for the quenching apparatus so that it may be intermittentl and automatically operated to discharge gerrous articles which it has received from. the heat treating apparatus.

The heat treating apparatus herein disoutside -cylindrical body member 20 which i"s suitably lined and has a central chamber 21. Extending through the b central chamber is a cylindrical member 22 opposite ends that it Within the member 22 is a spiutilized to feed ferrous articles delivered at one end of the heat treating apparatus so that they .progress may rotate.

through the tubular member 22 and may be,

discharged through openings 24 which are at the end of the heat treating apparatus, as shown in Fig. 1. A

It will be understood thatJ suitable heating means is applied to the cylindrical member 22.

The ferrous articles as they are discharged openings 24 fall through an opening 25 which is formed in the outside casing 20 of the heat` treating apparatus, and a chute or spout 26 into the' are guided'by bell-shaped portion 5 of the-quenching paratus.

In the present instance the shaft 27 which for the reception top, a movable extends from the endofthe cylindrical member 22 has a cam 28 at the end thereof.

ounted upon the casing 20 is an arm 29 which is pivotally secured at 30. This arm 29 has a wheel member 31 at the end thereof which is in contact with the cam 28. l

The lever 29 is a bell crank lever, the other arm of which is 29a, and the arm 29a connects bymeans of a long lever 32 with the arm 14 which as before stated will cause movement of the bottom closure member 10.

It will beperfectly obvious that the cam 28 will periodically move the lever 29 and thev other levers connected therewith s'o as to cause the bottom member 10 to open, and subsequently to close.

It will be seen that by the provision of a suitable cam 28 the time that the closure mem,- er 10 remains closed and the time that it remains open can be accurately defined so that just the desired period of quenching can be `ven to the ferrous articles.

hving described my invention, I claim:

1'. A quenching receptacle having a portion l of articles, a side wall provided with a large number of Huid inlets and connected at points to said portion, a header compartment surrounding said side wall,

means for introducin Huid into said header compartment and susequently into the recieptacle, said fluid being permitted to pass o at the upper portion o f the receptacle.

2. Aquench t closure for the bottom of the receptacle, and-means forintroducing a multiplicity of streams ofzf fluid through the side wall of the receptacle.

In testimony whereof, I hereunto aiix my signature.

ROY H. SMITH.

ing receptacle having an open f Y 

